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Shkiper50 [21]
2 years ago
11

Helppppppppppppppppppppp failingggggggggggggggg quizzzzzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics
2 answers:
vladimir1956 [14]2 years ago
4 0

Answer: 1.If two quadrilaterals are congruent, then there must be <u>4 </u>pairs of corresponding sides.    [C<u>)</u> is true]

2. Statement  ∆KPT ≅ ∆KRT.                       [D) is true.]

3. If CDEF ≅ MNPQ, then ∠P ≅ <u>∠E</u>                   <u>[C) is true.]</u>

4. If ∆LMC ≅ ∆BJK, then  <u>∆MCL</u> ≅ ∆JKB.    [B) is true.]

5. If ABCDE ≅ LMNPQ, then  there are 10 pairs of corresponding parts .

6.  If ∠C ≅ ∠​M, ∠E ≅ ∠​Q, ED, ≅ QN,CD ≅MN and EC≅QM , then <u>∆CED </u>≅∆MQN             [A)<u>  is true</u>]

7. ∠B and ∠E​  will be a pair of corresponding parts if ∆ABC ≅ ∆DEF.     [B) is true.]

8. B) is true.∆QPR ≅ ∆SPR

.   [B) is true]

9. If two angles of one triangle are congruent to two angles of another triangle, then the <u>third angles</u> are congruent.    [C) is true.]

10. If CDEF ≅ MNPQ, then ∠N ≅ ∠D.   [C) is true.]





Kaylis [27]2 years ago
3 0
I'm not positive on the first one but I believe it's all four sides.

2) KPT and KRT. when stating congruence the order must be the same. in this case the start and end of the triangle is the same (K, and T)
3) C. :E, The letter placement matches. in number two P is congruent to R.
4) B. if you start at the top (J) then to find the other triangle you must also start at the top. it goes from J to K. so on the other triangle you must also go the short leg first so M to C. then finish it off.
5)D. if one triangle has LMNPQ, then there are five letters so five parts. the other triangle is congruent and also has five letters and five parts. so there are five congruent parts
6)D. its asking for the triangle congruent to MQN. it says C and N are equal and N is at the end of the order so the congruent triangle must have C at the end of the order.E and Q are congruent and Q is in the middle so E must also me in the Middle. the only option is DEC
7) B this test really makes you focus on placement. in the congruent statement the E and B and both in the middle and therefore pair up together
8)B. again, if you start with the angle that is congruent in one order then its needs to happen for the other order. Then they both follow down the congruent side with 1 tally and finish it off with the side they both share.
9) I'm thinking its "triangles" it sounds like AAS or AAA congruency

As a side note for a lot of these just remember CPCTC. Corresponding Parts of Congruent Triangles are Congruent

Finally 10)C. CPCTC. its all about order
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Nia wants the total weight of her luggage to be no more than 50 kilograms.she has three suitcases that weigh 15.8 kilograms,17.4
Stella [2.4K]

Answer:

The total is 49.5

Step-by-step explanation:

15.8+17.42+16.28

6 0
2 years ago
A salesperson receives step commission on sales calculated as follows:
kykrilka [37]

Answer:

$2278.846

Step-by-step explanation:

Given the following commision steps :

8% on first $1000;

12% next $2000;

20% on sales above $3000

Recorded sales for a week :

Monday $1500.00

Tuesday $3000.00

Wednesday $ 970.00

Thursday $4563.81

Friday $2760.42

This assu es that commision is calculated after weekly sales:

Total:

(1500 + 3000 + 970 + 4563.81 + 2760.42)

= $12794.23

8% on first $1000

0.08 × $1000 = $80

12% of $2000 = $240

20% of $(12794.23 - 3000)

= 0.2 × 9794.23

= 1958.846

Total commision for the week :

$(80 + 240 + 1958.846)

= $2278.846

7 0
2 years ago
What is 10 times 7 thousands in unit form
Irina18 [472]
10 times 7 is 70.
So, it is 70 thousands.
Or in other words, seven ten-thousands.
or just write it normally: 10*7*1000=70000=seventy thousand
Wee!
7 0
2 years ago
Read 2 more answers
in a certain normal distribution, 6.3% of the area lies to the left of 36 and 6.3% of the area lies to the right of 42. Find the
KATRIN_1 [288]

As the normal distribution is symmetric the mean is (36 + 42) / 2 = 39

 

p(X < 42) = 1 - 0.063 = 0.937

 

From tables Φ (1.53) = 0.9370

 

From this time:

42 is 1.53 standard deviations above the mean

42 = 39 + 1.53s

1.53s = 3

 

Standard deviation is = 1.96

5 0
2 years ago
The word geometry has eight letters. three letters are chosen at random. what is the probability that two consonants and one vow
olga nikolaevna [1]

Answer:

0.536 is the required probability.

Step-by-step explanation:

 We have been given the word the word "GEOMETRY"

we have to find the probability that two consonants and one vowel are chosen:

Number of consonants are: 5

Number of  vowels are: 3

Hence, The required probability is: \frac{^5C_2\cdot ^3C_1}{^8C_3}

Using: ^nC_r=\frac{n!}{(r!)(n-r)!}

\frac{\frac{5!}{3!\cdot 2!}\cdot\frac{3!}{1!\cdot 2!}}{\frac{8!}{3!\cdot 5!}}

Simplifying the above expression:

\frac{\frac{5\cdot 4\cdot 3!}{3!\cdot 2}\cdot {\frac{3\cdot 2!}{2!}}}{\frac{8\cdot 7\cdot 6\cdot 5!}{5!\cdot 3\cdot 2}}

Further simplification after cancelling out the common terms we get:

\Rightarrow \frac{30}{56}=\frac{15}{28}=0.5357=0.536

Hence, Option 1 is correct.


4 0
2 years ago
Read 2 more answers
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